... determined via an inverse solution to the electrical potential field. Isothermal, in-phase and out-of-phase thermomechanical fatigue crack growth experiments were conducted with test temperatures ranging from 204°C to 538°C. thermomechanical fatigue (materials) crack propagation crack closure...

... spectra with the aid of computer algorithms. Finally, a technique for editing service load histories to remove non-damaging cycles from service load spectra is described. aluminum cycle editing damage elastic modulus fatigue (materials) fatigue limit life prediction non-damaging cycles steel...

.... It was found that the simple maximum shear strain criterion together with uniaxial overload data provided a good estimate of the fatigue behavior for all strain ratios. multiaxial fatigue biaxial fatigue fatigue (materials) fracture (materials) steels overloads sequence effects tension-torsion...

... regions. fatigue (materials) composite materials graphite/epoxy delamination crack propagation rate fracture mechanics stress ratio Mode II end-notched flexture end-loaded split fracture (materials) Keisuke Tanaka I and Hiroshi Tanaka I Stress-Ratio Effect on Mode II Propagation...

... for different delamination locations and for different values of applied compressive strain. composite materials fatigue (materials) delamination energy release rate mode mixity stress intensity factor crack growth law fracture (materials) Assimina A. Pelegri, t George A. Kardomateas, t...

... to be around 25 to 30%, compared to the room temperature values. fatigue (materials) fracture (materials) composite materials carbon-fiber epoxy composite single-shear bearing strength double-shear bearing strength hole deformation hot/wet environment environmental degradation Basant K. Parida...

... testing damage progression fatigue (materials) fracture (materials) composite materials Nidal Alif I and Leif A. Carlsson i Failure Mechanisms of Woven Carbon and Glass Composites REFERENCE: Alif, N. and Carlsson, L. A., "Failure Mechanisms of Woven Carbon and Glass Composites," Composite Materials...

... reflector plate inspection in situ surface acoustic waves in situ longitudinal acoustic waves fatigue (materials) fracture (materials) composite materials Dianne Benson, t Prasanna Karpur, 1 David A. Stubbs, l and Theodore E. Matikas l Evaluation of Damage Evolution and Material Behavior in a Sigma...

... interlaminar tensile strength delamination fatigue (materials) fracture (materials) Kevin L. Koudela, 1 Larry H. Strait, 1 Anthony A. Caiazzo, l and Karin L Gipple2 Static and Fatigue Interlaminar Tensile Characterization of Laminated Composites REFERENCE: Koudela, K. L., Strait, L. H., Caiazzo...

... the tests were conservative. The tests also validated the design methodology. composite materials fatigue (materials) fracture (materials) wing skin panels aramid-reinforced aluminum laminate glass-aluminum reinforced epoxy aluminum-lithium materials stringer-stiffened compression panels...

... is for high-frequency loading cycles with a non-zero mean stress, and is termed "fatigue-dominated" interaction. Results are presented in the form of S-N and damage accumulation curves. KEYWORDS: continuumdamage mechanics, cracking, fatigue (materials), fracture (materials), metal-matrix composites, creep...

... loadings. In both cases, environmental degradation influences the initiation and evolution of damage. metal-matrix composites oxidation damage fracture (materials) environmental degradation life prediction fatigue (materials) continuum damage mechanics cracking David H. Allen, 1 James W...

.... continuum damage mechanics cracking fatigue (materials) fracture (materials) constraint effects general layup composites in situ damage effective factor mesoscopic analysis macroscopic analysis five-layer model Jinghong Fan 1 In Situ Damage Progression in General Layup Composites REFERENCE: Fan...

... plots. continuum damage mechanics cracking fatigue (materials) fracture (materials) metal-matrix composites coupled deformation damage uncoupled deformation damage finite element methods Thomas E. Wilt, 1 Steven M. Arnold, 2 and Atef F. Saleeb 3 A Coupled/Uncoupled Computational Scheme...

... potential internal variables fatigue failure maps fatigue (materials) fracture (materials) Alain Burr, 1 Franfois Hild, 1 and Frederick A. Leckie2 Damage, Fatigue, and Failure of Ceramic-Matrix Composites REFERENCE: Burr, A., Hild, F., and Leckie, F. A., "Damage, Fatigue, and Failure of Ceramic...

... equations for each of the consultants.The numericalresults for high cycle fatigue loading are presented for variations in the material and model parameters. KEYWORDS: continuum damage mechanics, cracking, fatigue (materials), fracture (materials), damage, damage evolution, micromechanical fatigue damage...

... damage parameter continuum damage mechanics damage localization high-cycle fatigue cracking fatigue (materials) fracture (materials) Hassan Yaacoub Agha, 1 Franfois Hild, 1 and Reng Billardon 1 Microscopicand Mesoscopic Damage Localization REFERENCE: Yaacoub Agha, H., Hild, F., and Billardon,R...

.... An argument for implementing ISVs based on higher-order moments of the damage distribution within an RVE is presented. continuum damage mechanics damage evolution brittle microcracked solids internal state variable theory damage distribution effects cracking fatigue (materials) fracture...

...—a critical failure. continuum damage mechanics cracking fatigue (materials) microdamage statistical evolution number density fracture (materials) Yilong Bai, ~ Wensheng Han, ~and Jie Bai ~ A Statistical Evolution Equation of Microdamage and Its Application REFERENCE: Bai, Y., Hun, W., and Bal...

... cycles. damage mechanics fatigue (materials) crack initiation crack propagation aluminum alloys finite element analysis continuum damage mechanics cracking fracture(materials) C. L. Chow 1 and L. G. Yu2 A Unified Approach to Metal Fatigue Based on the Theory of Damage Mechanics REFERENCE...